@article{GAMA_1958_1958_1_a10,
     author = {Mart{\'\i}n Jadraque, V.},
     title = {Sobre el c\'aculo de variaciones.},
     journal = {Gaceta matem\'atica},
     pages = {154-160},
     publisher = {mathdoc},
     volume = {10},
     number = {5-6},
     year = {1958},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1958_1958_1_a10/}
}